http://maps.google.com/maps?f=q&hl=en&geocode=&time=&date=&ttype=&q=philadelphia+pa&ie=UTF8&ll=39.949795,-75.149789&spn=0.001501,0.002494&t=h&z=19&om=1 is that about where the rally will be? On the lawn in front of the Liberty Bell?